they say inspectors examined the tea bags and detected pesticides that exceed the law. they pulled about 900 tons off the province. authorities and officials say the pesticide levels do not pose a health risk even for people who consume the tea daily. >>> archaeologists say they've made an important finding that could alter the history of japan's system of riding. they say they found earthen ware that suggests that hiragana characters could date back farther than currently believed. last year's archaeologists in the ancient capital of kyoto excavated 20 plates and other pottery items from the ruins of the home of an aristocrat. they say it dates back to the late 9th century. hirogana has believed to have become an established form of writing in the 10th century. >> translator: a large amount of earthen ware was discovered in the home of a noble family. this means the aristocrats of the time already had a good command of hiragana. >> they say it ho provides precious clues to how it involved in japan. >>> visitors to kyoto at this time of year enjoy its gardens and temple